Bung-bushing for casks.



No. 887,962. I PATENTED MAY 19, 1908.

H. REISNER. BUNG BUSHING FOR GASKS.

APPLICATION FILED JULY 5, 1907.

wrmg gssrzs INVENTOR (/T 4% GM Maw fizwwz UNTTED STATES PATENT OFFICE.

HERMANN REISNER, OF CHICAGO, ILLINOIS.

. BUNG-IBUSHING FOR CASKS.

T 0 all whom it may concern:

Be it known that I, HERMANN REIsNER, a citizen of the United States, andresiding at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Bung-Bushings for Casks, ofwhich the following is a complete specification.

This invention relates to improvements in bung bushings for casks andmore particularly to a bushing provided with means adapted to securelylock it in place.

Heretofore difficulty has been encountered in having the bung bushingsof casks, such as used for beer and like products, working loose, due tothe continuous rough handling to which the casks are subjected.

It is the object of this invention therefore, to provide a bushinghaving means thereon adapted to easily indent the side of the cask, wheninserted, but which will grip into the wood or other cask material whenthe bushing starts to retract for any reason.

It is a further object of the invention to provide a bung bushing havinga recess in its flange in which is carried a packing of any suitablematerial adapted to securely seal the joint between the sleeve of thebushing and the cask.

The invention consists of the matters hereinafter described in thespecification and more fully pointed out and defined in the appendedclaims.

In the drawings: Figure 1 is a fragmentary section of a cask and showingin vertical section a bung'bushing embodying my invention. Fig. 2 is aview similar to Fig. 1 but showing a different method of securing thebushing in the cask. Fig. 3 is a view of the bushing, partly in sideelevation and partly in vertical section, and showing a detachabletoothed rim. Fig. 4 is a perspective view ofthe toothed rim shown inFig. 3. Fig. 5 is a bottom plan view of the bushing shown in Fig. 3.

As shown in said drawings: 1 indicates the cask and 2 indicates thebushing as a whole, which may be of any preferred construction andmaterial, preferably of metal. Said bushing, as shown, comprises anexternally threaded sleeve 3 adapted for threaded engagement in the bunghole of the cask, which, as shown in Fig. 1, is provided on its innerside with a flanged nut S, countersunk in the cask and adapted toreceive said sleeve. On

Specification of Letters Patent.

Application filed July 5, 1907.

Patented May 19, 1908.

Serial N0. 382,210.

the outer end of said sleeve is a broad flange 4, having on its underside a recess 4' in which is engaged a packing 5 of any desired materialsuch as soft rubber and which is adapted to be firmly pressed againstthe cask when the bushing is secured in place. On the under side of saidflange 4 and concentric with the sleeve 3 is a downwardly directed,serrated rim 6, the teeth of which are directed rearwardly of thedirection in which the bushing is rotated to insert it in the bung holeof the cask. As shown in Figs. 1 and 2, said rim is formed integrallywith the flange of the bushing. It may however be formed separately asshown in Figs. 3 to 5 inclusive, in which case the flange is provided onits under side with a groove, concentric with the sleeve and in which isrigidly but removably engaged a band 6 having a serrated edge as beforedescribed. As shown more clearly in Fig. 5 the groove is not continuous,but a shoulder 7 is left against which the ends of the band abut toprevent the bushing being turned independently of the band.

The operation is as follows: As shown the bushing is screwed into thebung hole of the cask and the packing 5 is brought into firm contactwith the cask about the hole, there by securely closing the joint.Inasmuch as the packing is carried in a recess in the flange of thebushing it is always ready for use and obviates the necessity ofseparately handling the packing. As the bushing approaches its innerlimit of movement in the bung hole, the serrated rim is forced into thewood of the cask and inasmuch as its teeth are directed rearwardly ofthe direction of rotation they tend to slip over the grain of the woodand indent it rather than out it. The grain tends to spring back toplace between the teeth thereby securely locking the bushing against anytendency to reverse movement due to handling the cask.

Obviously the serrated rim may be made integral with the bushing orseparately therefrom as preferred, and the teeth thereof may be sprungslightly laterally if desired to more efficiently grip the wood.

I claim as my invention:

1. In a device of the class described the combination with an externallythreaded sleeve ofa laterally directed flange thereon having a recess inits under side, a resilient packing securely engaged in said recess anda downwardly directed rim intermediate the edge of the flange and saidrecess and having serrations on its under edge.

2. In a device of the class described the combination with an externallythreaded sleeve of a peripheral flange thereon and a downwardly directedrim on said flange concentric with the sleeve, and having teeth on itsunder edge directed rearwardly of the direction of rotation of thesleeve when being secured in place.

3. In a device of the class described the combination with an externallythreaded sleeve of a flange thereon having a recess in its under side, apacking rigidly engaged on r the under side of said flange concentricwith the sleeve, and a serrated rim on the under I side of said flangeremovably engaged in said I recess.

4. In a device of the class described the combination with a sleeve of aperipheral flange on one end thereof, having a recess in its under side,and a serrated band rigidly but removably engaged in said recess andprojecting downwardly from the flange.

In testimony whereof I have hereunto subscribed my name in the presenceof two witnesses.

HERMANN REISNER.

Witnesses:

J. W. PETTERssoN,

JOE WINKLHoFER.

